A sunny and warm Memorial Day weekend isn't in the forecast for San Diego County, but tomorrow and Monday should at least be dry.

JOHN GASTALDO / Union-Tribune

Guadalupe Padilla and his wife, Roselia, bundled
up against the below-60 weather conditions
yesterday while walking on Valley Parkway in
Escondido.

The forecast for today is mostly cloudy and breezy with a 50 percent chance of showers and thunderstorms, the National Weather Service said. Sunshine could peek through in the afternoon.

Highs in the 60s are expected today on the coast and inland. Highs in the low 70s are forecast for the rest of the holiday weekend.

Unlike the recent heat wave, “nobody's going to mistake it for early summer,” said weather service meteorologist Philip Gonsalves.

Parts of the county broke cold records yesterday for daytime temperatures that reached no higher than 60.

If that's disappointing, think of what tourists who traveled hundreds or even thousands of miles thought about the weather.

“The (Indy) 500 is this weekend,” said Claudia Bossard of Indianapolis, who was walking briskly to her car near the Oceanside Pier yesterday to dodge the downpour. “It's going to be warmer in Indiana than it is in Southern California.”

Her friend, Suzanne Carlson, joked that they have something to do with the weather here. “Every time we come here, we bring you the rain,” she said.

Lydia Erickson of DeWitt, Mich., said she didn't feel like she was in California. She's here with three sisters and their 86-year-old mother.

“We have this kind of weather in Michigan all the time,” Erickson said. “It's a bummer, but we're determined to have fun.”

At San Onofre State Beach, there were plenty of vacant spaces for camping, not typical for a three-day weekend.

“If we were in a tent, we would be gone by now,” said Brian Coulter, 36, of Upland, who arrived in an RV with his laptop and movies for his two kids.

A spokesman at the San Diego Convention & Visitors Bureau said it's tough to predict the effect of poor weather on tourism during Memorial Day weekend, but it doesn't help.

Daytime highs that broke low-temperature records for today's date were recorded yesterday in Alpine (54), the San Diego Wild Animal Park (59), Chula Vista (60) and Ramona (59). Anza-Borrego Desert State Park, which reached only 69, broke a record of 82 set in 1980.

It was cold elsewhere in Southern California. About 2 inches of snow dusted trees in Wrightwood, a ski resort east of Los Angeles, where just last week it was 90 degrees.

The mountainous Grapevine section of Interstate 5 remained open, but California Highway Patrol officers were zigzagging across the wet lanes to slow traffic.

Tomorrow in San Diego County, partly cloudy skies and breezy conditions are expected. Highs along the coast should be in the 60s. with lows in the 50s. Inland temperatures could reach the low 70s and drop to high 40s or low 50s.

On Monday, the forecast calls for partly cloudy skies in the morning and a bit more sun in the afternoon. Highs in the 60s and low 70s are expected.